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Journal of Electrochemistry ›› 2020, Vol. 26 ›› Issue (1): 84-95.  doi: 10.13208/j.electrochem.181205

Special Issue: “电催化和燃料电池”专题文章

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Challenges in the Activity and Stability of Pt-Based Catalysts toward ORR

ZHAO Tuo1,2, LUO Er-gui1,2, WANG Xian1,2, GE Jun-jie1,2,*(), LIU Chang-peng1,2,*(), XING Wei1,2,*()   

  1. 1. School of Applied Chemistry and Engineering University of Science and Technology of China,Hefei 230026, Anhui ,China
    2. State Key Laboratory of Electroanalytica Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences University of Chinese Academy of Sciences, Changchun 130022, Jilin, China
  • Received:2018-12-05 Revised:2019-01-21 Online:2020-02-28 Published:2019-01-15
  • Contact: GE Jun-jie,LIU Chang-peng,XING Wei E-mail:gejj@ciac.ac.cn;liuchp@ciac.ac.cn;xingwei@ciac.ac.cn

Abstract:

The development of highly efficient oxygen reduction reaction (ORR) catalysts is the key to the commercialization of fuel cells, where the sluggish ORR reaction rate needs to be overcome by adjusting the intermediates adsorption energies on the catalytic surfaces. To-date, platinum (Pt)-based materials are the-state-of-the-art catalysts in terms of both activity and stability in ORR, making them the preferred choice for commercial applications. However, the high cost of Pt-based catalysts limits their widespread use, leading to massive effects paid in reducing Pt loading, improving catalyst activity and stability. This article illustrates the challenges in the ORR reaction and introduces the recent research progresses in Pt-based oxygen reduction catalysts including the ORR mechanism, core-shell structures, one-dimensional nanostructure, and other representative works of Pt-based catalysts. Some perspectives in the future development trend of Pt-based catalysts are given at the end of the paper, hoping to provide readers with some ideological inspiration.

Key words: Pt-based catalysts, oxygen reduction reaction, platinum alloy, core-shell structures, one-dimensional structure

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